Here are some of the different types of accounts so you can make the most of your savings. Municipal bond funds invest in a number of different municipal bonds, or munis, issued by state and local governments. Corporate bond funds can be an excellent choice for investors looking for cash flow, such as retirees, or those who want to reduce their overall portfolio risk but still earn a return. Savings accounts typically only allow for up to six fee-free withdrawals or transfers per statement cycle, however. Money that is considered savings is often put into an interest-earning account where the risk of losing your deposit is very low.